Collective Coulomb blockade in an array of quantum dots: A Mott-Hubbard approach
- 30 May 1994
- journal article
- research article
- Published by American Physical Society (APS) in Physical Review Letters
- Vol. 72 (22) , 3590-3593
- https://doi.org/10.1103/physrevlett.72.3590
Abstract
We investigate the electron addition spectrum in a class of Hubbard-like models which describe arrays of coupled quantum dots. Interdot tunneling leads to a sequence of two phase transitions separating a region of collective Coulomb blockade from a region where the Coulomb blockade of individual dots is maintained and a region where the Coulomb blockade is destroyed altogether. Observable experimental consequences of our theory are discussed.Keywords
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